Breathable backing or release liner and process for forming the same
First Claim
1. A breathable backing or release liner comprising a breathable, woven or non-woven support member having a silicone-release coating on essentially only one side thereof, said coating being formed by applying a radiation-curable composition containing a polysiloxane to one side of said support and exposing said composition to radiation such that said composition does not substantially penetrate said support, and said support member having a moisture vapor transmission rate greater than 250 g/sq.m./24 hrs./20°
- C./80% RH and air permeability greater than 80 cu. ft./min./sq. ft.
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0 Petitions
Accused Products
Abstract
A breathable backing or release liner comprising a breathable, woven or non-woven support member having a silicone-release coating on essentially only one side thereof, said coating being formed by applying a radiation-curable composition containing a polysiloxane to one side of said support and exposing said composition to radiation such that said composition does not substantially penetrate said support.
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Citations
20 Claims
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1. A breathable backing or release liner comprising a breathable, woven or non-woven support member having a silicone-release coating on essentially only one side thereof, said coating being formed by applying a radiation-curable composition containing a polysiloxane to one side of said support and exposing said composition to radiation such that said composition does not substantially penetrate said support, and said support member having a moisture vapor transmission rate greater than 250 g/sq.m./24 hrs./20°
- C./80% RH and air permeability greater than 80 cu. ft./min./sq. ft.
- View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A process for preparing a breathable backing or release liner which comprises the sequentially performed steps of:
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(a) providing a woven or non-woven breathable support member having two sides, said support member having a moisture vapor transmission rate greater than 250 g/sq.m./24 hrs./20°
C./80% RH and /or an air permeability greater than 80 cu. ft./min./sq. ft.,(b) applying a radiation curable composition containing a polysiloxane to one side of said support member, and (c) exposing said radiation curable composition to radiation to cure said composition, said steps (b) and (c) being conducted in such a manner that said composition does not substantially penetrate said support member. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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Specification